Splint-impregnating means for match-machines.



W. A. FAlRBURN.

SPLINT IMPREGNATING MEANS FOR MATCH MACHINES. APPLICATION FILEDNIM/1.1915. RENEWED Nov. 24,1917.

LQQ. Patented Feb. 12, 1918.

2 SHEETS-SHEET l.

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SPLINT IMPREGNATING MEANS FOR MATCH MACHINES.

APPL|CAT|0N FILED MAYI.1915.

RENEWED NOV. 24.1917.

Patented Feb. 12, 1918.

2 SHEETS-SHEET 2 A mi 'Mw ih .an 'sara-rae minar orme..

WILLIAM A. FAIRBURN, F GREAT BRRINGTON, MASSACHUSETTS, ASSIGNOR T0 THEBAIVIOND MATCH COMPANY, 0F

CHICAGO, ILLINOIS, A CORPORATION OF ILLXNOIS.

SPLNT-EMPREGNATING MEANS FOR MATCH-MACHINES.

To aZZ -wom t may concern:

Be it known that l, TWILLIAM A. Fam- BURN, a citizen of the UnitedStates, and resident of Great Barrington, in the county of Berkshire andState of Massachusetts, have invented certain new and usefulImprovements in Splint-lmpregnating Means for lfiatch-ldachines, ofwhich the following is a specification.

rEllis invention relates to means for treating match splints withpowdered material adapted to impart to the splints a non-glowingproperty, which invention may be described as a modification ot anapparatus Joiafning the subject of an application for 1Qatent filed byme simultaneously herewith hnder Serial No. 25,121. Such apparatusembodies, among other features, a novel arrangement of air blast deviceswhereby an impregnating material, in the form of aV dry powder, 'isforcibly blown against and among the rows or splints depending from thetraveling carrier of a continuous match machine.

according to the present invention means are provided whereby the airand powder are mixed and the mixture is projected into the path of thesplints, which means, together with various subsidiary devicescoordinated therewith, will be hereinafter particularly described andclaimed.

Figure It is a longitudinal vertical section, partly elevation, of anapparatus embodying my invention. a fragment of the carrier, partiallying indicated.

Fig. z is a sectional elevatlon of the apparatus. as on the' line 2-2 ofFig. l; certain parts being brokenaway to show internal features.

leferri g pai opeiiorated plates hinged or linked toetaer to 'form anendless chain, into'which splint carrier comprising a series plates thematch splints (S) are inserted.

row by row and thereby transported through 'the match making path.Suitably-located beneath the route ot the carrier after it leaves thesplint inserting station is a chambered structure il into which projectthe dependin splints during their travel across the structure Thisstructure is preferably benl-shaped., i tively capacioi ts interioraltording a rela- .is chamber l2 within which Specification of LettersPatent.

1915, Serial No. 25,122. Renewed November 24, 1917.

supplied with splints, be-Y to the drawings, l0 designates Patented rei,te, raie..

serial No. 203,865.

the splints are treated with an anti-glowing material, such, forexample, as powdered ammonium phosphate. The upwardly extending sides ofthe structure are provided with guideways 13 for the longitudinal edgesof the carrier; and the ends of the structureare open, as at 14, topermit the free passage of the splints into, through and from thechamber 12. rShe structure embodies spaced double walls i5, 16 to aord ajacket or supplementary chamber 17 into which leads a supply pipe 1S.The inner wall l5 is pro- `vided with a plurality of orifices whichterminate in upwardly projecting nozzles 19 that are directed toward thepath of the splints through the structure. The pipe 18 is connected withthe discharge nozzle of a blower 20, or the like, by means of'whichpowdered material from a suitable source of supply is introduced intothe chamber under high pressure; being thence distributed among thenozzles and projected thereby to an among the splints within the chamberl2. A. series of horizontally projecting noz zles 2l are arranged alongeach of the inner sides of the structure so as to direct theimpregnating material horizontally in opposite directions toward andamong the upper portions of the splints; and a series of nozzles 22 arearranged across each end of the structure so as to direct the materialinwardly and upwardly toward the splints, and at the same time serve asa simple and ecient means to prevent the escape of the powder by way ofthe open inlet and outlet portions of the structure. The remainingnozzles are arranged to deliver the material in upwardly convergingpaths, thus insuring a thorouOh distribution of the material among thesplints.

By forcibly blowing the air and powder at various angles against andthroughout the length of the splints the powder is well incorporatedwith the surface of the wood in a manner to secure uniform and ecientimpregnation.

Arranged above the impregnating structure, in close relation to theupper surface of the splint chain, is a hood 23 from which leads anexhaust pipe 24 by means of which the powder escaping through the holes(which may be unilled with splints) and spaces of the chain plates, 'iscarried od. Rotary brushes 25, mounted at the ends of the hood, contactwith the upper surface of the carrier, and thus serve not only toprevent the escape of powder beneath the ends of the hood, but also toclear the top of the carrier as it leaves the impregnating structure.The shafts of the brushes are provided at one end of the hood withpulleys 26 connected by a crossed belt 27, and one of the shafts is alsoprovided at its opposite end with a pulley 28 which is belted with anddriven from a suitable source of power. Thus the brushes areconcurrently driven in the directions indicated by the adjacent arrows.

50 designates a supply hopper into which the material is introduced; and5.1 designates an air and powder separator which is connected with thelower funnel-shaped discharge end of the hopper by means of a conduit52. This conduit is provided with a feed device, such as a conveyerscrew 53, the shaft of which has its bearing in the closed outer end ofthe conduit, whereby when the screw is properly rotated the contents ofthe hopper are progressively fed into the interior of the separator. The lower end of the latter is funnel-shaped and it discharges into apowder grinding mill 54 of any usual or approved construction. The millherein illustrated is provided with co-acting grinding rolls 56 theshafts of which bear intermeshing gear wheels 5.7. lThe outwardlyprojecting end ofone (5S) of these shafts has fast thereon a sprocketwheel 59 which is geared by means of a chain 60 with a similar wheel 6lon the power driven shaft of the blower. The grinder shaft 58 is alsoprovided with a sprocket wheel 62 which is connected by means of a chainG3 with a similar wheel 6% on a suitably-disposed shaft the outer endor" the conduit; the latter shaft bearingl a bevel wheel in mesh with asimilar wheel on the shaft of the feed screw 53. Thus the feed screw andthe grinding rolls are'driven concurrently, and in consequence thematerial is progressively transferred from the hopper to and finelyreduced by the grinder. discharge pipe 55 from the grinder leads to apipe-65 which is connected with the intake of the blower,

and hence the material as rapidly as it 1s ground is drawn into theblower and forcibiy projected thereby into the supplementary chamber ofthe lmpregnating structure.

The pipe 65 is extended upward and con- Y nected with an outlet in thetop of the separator. and the pipe 24 from the hood is extended upwardand connected with a tangential inlet in the side of the separator.

The separator may be of any known or approved type which. whiieestablishing air communication between the pipes 24, 65, operateseffectuall; te separate the powder from the air and allow the powderthus separated to reenter the grinder. n the present instance aseparator or dust collector of the Morse type is indicated, the samecomprising a casing of appropriate form having therein a centralairchamber 66 and an annular powder chamber 67, such chambers beingpartitioned by edge-spaced separating members 68. An air current beingestablished 'at the outlet in the top of the separator by the action ofthe blower, the powder laden air is thereby drawn from the hood and iscaused to flow tangentially into the central chamber of the separator ina whirling current which impinges against the inner faces of theseparating members 6G, the centrifugal action causing the heavier powderto be projected against such members and to be discharged through thespaces therebetween into the chamber 67. Such powder accumulating withinthe latter chamber, falls to the bottom thereof and passes to thegrinder.

l claiml. 'lhe combination with a carrier constructed'to supportdepending match splints in spaced relation to each other, of adoublewall structure vproviding two chambers, whereof one constitutes animpregnating chamber and the other av powder supply chamber therefor,said impregnating chamber having inlet and outlet portions for thepassage of the carrier and being arranged directly beneath and adjacentto the path of the underside of the carrier, whereby the splints on thecrrricr progress to and through said impregnating chamber, the innerwall of the structure having oriiices aiording communication between thetwo chambers, and pneumatic means for forcing impregnating powder intothe outer charnber, wherebyv a mixture powder and air under pressure isprojected through said orices toward, against and among the dependingsplints on the carrier.

2. The combination with a carrier constructed to support depending matchsplints in spaced relation to each other, of a doublewall structureproviding two chambers, whereof one constitutes an impregnating chamberand the other a powder supply chamber therefor, said impregnatingchamber having inlet and outlet portions for the passage of thek carrierand being-arranged directly beneath and adjacent to the path of theunderside of the carrier, whereby the splints on'the carrier proffressto and through said imprcgnating chamber, the inner wall of thestructure haring nozzled orifices affording communication between thechambers, the nozzies of such oriiices projecting at different angi-esinto the impregnating .chamber and toward the path of the dependingsplints on th pneumatic means for :llore g powder into the por oer supwhereby a mixture c pressure isprojected through said nozzles toward,against and among the dependmg splints on the carrier.

3. The combination with a carrier constructed to support depending matchsplints in paced relation to each other, ,of a structure having achamber for impregnating powder arranged directly beneath and adjacentto the path of the undersurface of the carrier, said chamber havinginlet and outlet portions for the passage of the carrier, whereby thesplints on the vcarrier progress into and through said chamber and aretreated with the powder therein, the said chamber havingat itsrespective ends air ducts inclined upwardly and inwardly toward the pathof the carrier through the chamber so as to prevent the escape of thepowder through the inlet and outlet portions of the structure.

4. The combination with a carrier constructed to support depending matchsplints in spaced relation to each other, of a structure having achamber for impregnating powder arranged directly beneath and adjacentto the path of the underside of the carrier, said chamber having inletand outlet portions for the passage ot' the carrier, whereby theSpiints' on the carrier progress into and through said chamber, and aretreated with the powder therein, said chamber having in its bottom andends inclined nozzles directed toward the path of the depending splintswithin the chamber, the nozzles at the ends being inclined upwardly andinwardly toward said path, and pneumatic means tor forcibly projectingimpregnating powder through said nozzles into the chamber.

Signed at New York, in the county and State of New York this 30th day ofApril, A. D. 1915.

WlLlLlAM A. FARBURN.

